Valve mechanism for motors.



A. P. SCHMIDT.

VALVE MEGHANISM FOB. MOTORS.

APPLICATION FILED 0012.10, 1912,

FIG. 1

Patented June 2, 1914.

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VALVE MECHANISM FOR MOTORS.

APPLICATION FILED OOT.10, 1912.

1,098,41 1 Patented June 2, 1914-.

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- VALVE MECHANISM FOR MOTORS. ABPLIOATION FILED O0T.10, 1912.

1339 311, .-PatentedJune2,1914.

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To all whom) it may concern:

Be it known thatI, AUeUsTUs F. Sennmr, a citizen of the United States, and resldent of' Pittsburgh, in the county of Allegheny and State of Pennsylvania; have invented a new and useful Improvement in Valve Mechanism for Motors; and I do hereby de- 'ciare the following to be a full, clear, and

exact description thereof.

i y inventlon relates to rotary valve mechanisni for motors.

.The object of my invention is to provide a rotary valve construction in which there.

is a quick and direct passage from the gassupply to the cylinder, and fro'mthe cylinde'rto the exhaust; while at the same time the parts on the-exhaust side are kept c001 and the inlet. valve maintained at approximately an even temperature with the .exhaust so thata substantially equal expansion takes place in both valves;

1s a vertical section of a portion of a gas en To these. ends my invention. comprises the novel features hereinafter set forth and claimed. v

In the accompanying draw1n'gs, F1gure 1 gine .With my invention applied thereto. Fig. 2 is a longitudinal section of the valve taken on the line 2-2 Fig. 1; Fig.- 3 is a section on the line 3 Fig. 1 {Fig at is' an end View showing themeans for rotating-the is y of the piston-rod is connected to-the piston? valve. Fig. 5 is a longitudinal section of a portion of the core piece; Fig. 6 is a like view turned ninety degrees; and Fig. 7 isa view of the rotary valve partlybroken away; and Fig. 8 is a modified form of my invention.

'Thenumeral 2' designates the crankecas- 'ing through which the crank-shaft 3 passes:

The piston-rod 4.- .is eonnectednp to the crank shaftby the crank 5. The upper end contained within thecylinder 9. The cylinders may be cast in one piece if .desired.jand.

Secured to. said cylinders in thevalve casing 11. This'casing isprdvided with the inlet VALVE mamas ronflmorons.

Snecification 'of Letters Patent. Application filed October in, 1912. ls'e amo. 724,33).

'tively." As indicated in :Fig. '7Pthese .are arranged in pairs at'an'angle o f free to rotate aswell as move longitudi- PatentedJune 2, 19 14..

12 which is connectedup with themani'fold 13 to which the gas or other motive fluid for operating the engine is introduced. The.ex-- haust l iis formed in the casing and said"ex-- haustis connected up with the exhaust one side thereof. is the bore-16 -which.reeeives the-rotary-valve 17, said valve being communicate with the inlet passage 12am. the inlet port 20 of the cylinder, respecorts from each other, so that When'the motive. fluid is being introduced intoone cylinder, the supply to the other cylinder will be cut off. Wit hin the valve 17'i s.the core 21, said core 'inthe present instance being stationary, and said. core'jis held in thisfpesition by having at one end the threadedpor tion 22', which passes through the end plate 2-5; the reduced portion having the key or feather 2% which engages 21 seat inthe end-plate :23 to. pr'eventthe turniugot the core piece 21. A. ja'm-1'1ut -25 engages the threaded portion of the reduced portion 22' and, holds said core-piece against longitudinal move'nient. The opposite nd of the core is also-threaded as at 26-:and passes through the.hnd-plate-B'T, the jam-nut 28 engaging said threaded portion 26. By this construction the core-piece mounted inde pendently "bf the valve-sleeve, and said waive-sleeve is carried by said core-piece but "n'ally on said core-piece and may be termed a floating valve-sleeve. Being earri ed by I 'have illustratedniy invention'in eonne'ction with-a two-cylinderengine, although it isapparent that any-number of ey-linders' .may be employed; i i

the core-piece the valve-sleevedoesnot rest ,for support ,orget'its-bearings ion the bore 16of the casing," and consequently there no binding of the val esleeve .in 'saijdybore' V and-practically no Wear. p

The core-piece. 21' is provided with "the.

transverse passages 29 .extendingthere through. In the core-piece illustrated there;

are two of such passages to correspond. with" the number of cylinders. These; passages, 29- 'are always in register with the inlet-pas sagelQ and the inlet port 2-0 to the-cylinder;-

' and when the-valve' 17 is turned to bring its 55 manifold 15'. "Formed Within the casing at provided With'the ports 18 and 19, which red poi'ts adapted to register with pbrts in said rotary valve, and means for supporting said awe-piece by said casing and means for retating said valve.

6. The combination of-a cylinder, a casing, 21, core-piece having ports and a floating valve-sleeve mounted on said coreqaiece naving'pciis adapted to register with ports in said casing, said cylinder and core-piece, and means for rotating said valve. 10

Tn tetimony whereof, Iihe sai. .L%\\FGUS- TUS F. SCHMIDT, have hereunto set my hand.

AUGUSTUS F. SUHMiD'lX Witnesses:

ROBERT C. TOTTEN, J OHN F. WILL. 

